. pakistan's formerpresidentpervezmusharrafspeakingout to "the situation room" about why osama bin laden was able to hide out in his country for five years. could is there be an opening for republicans in the debt stalemate after new signals from one of the leading activists about the bush-era tax cuts? >>> and san gentleman gupta meets up with a mini darth va r vader. it's a cnn exclusive. i'm wolf blitzer, you're in "the situation room." ten years since the -- as we get closer, there's a lot for the department of homeland security to worry about, including its brand-new alert about possible threats to utility plants across the country. joining us now, the secretary of homeland security, janet napolitano, madam secretary, thank you for coming in. >> oh, thank you. >>> there are fresh concerns that terrorists or terrorism sympathizers may have infiltrated, including nuclear power plants. is that true? i think that's report is based on information sharing report of the time we put on the in the normal course of business. reminding people what they need to be watching out for. >> we do kn